/* ===== 品牌档案页 / page-about ===== */

.page-about {
  --ab-gap: clamp(22px, 4vw, 44px);
  background: var(--paper);
}

/* ---------- 首屏 ---------- */
.page-about .ab-hero {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  color: var(--paper);
  padding: clamp(24px, 4vw, 42px) 0 clamp(38px, 6vw, 78px);
}

.page-about .ab-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: repeating-linear-gradient(
    90deg,
    rgba(244, 239, 228, 0.05) 0 1px,
    transparent 1px 84px
  );
}

.page-about .ab-hero .jh-wrap {
  position: relative;
  z-index: 1;
}

.page-about .ab-hero .jh-crumb,
.page-about .ab-hero .jh-crumb a {
  color: rgba(244, 239, 228, 0.68);
  text-decoration: none;
  font-size: 13px;
}

.page-about .ab-hero .jh-crumb a:hover {
  color: var(--gold);
}

.page-about .ab-hero .jh-crumb {
  margin-bottom: clamp(20px, 4vw, 34px);
}

.page-about .ab-hero__grid {
  display: grid;
  gap: var(--ab-gap);
}

.page-about .ab-hero .jh-eyebrow {
  color: #E7C67F;
}

.page-about .ab-hero .jh-eyebrow__num {
  background: var(--gold);
  color: var(--ink);
  border-color: var(--gold);
}

.page-about .ab-hero .jh-title--xl {
  color: var(--paper);
  margin-top: 14px;
  letter-spacing: -0.02em;
  line-height: 1.02;
}

.page-about .ab-hero .jh-lede {
  color: rgba(244, 239, 228, 0.8);
  max-width: 54ch;
  margin-top: 20px;
  font-size: clamp(15px, 1.8vw, 17px);
}

.page-about .ab-meta {
  margin: 0;
  border-top: 2px solid rgba(244, 239, 228, 0.3);
  font-family: var(--font-mono);
}

.page-about .ab-meta__row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 14px;
  padding: 11px 0;
  border-bottom: 1px solid rgba(244, 239, 228, 0.16);
  font-size: 13px;
}

.page-about .ab-meta__row dt {
  color: rgba(244, 239, 228, 0.6);
  letter-spacing: 0.02em;
}

.page-about .ab-meta__row dd {
  margin: 0;
  color: #E7C67F;
  font-weight: 700;
  white-space: nowrap;
}

/* ---------- 章节 ---------- */
.page-about .ab-section {
  padding: clamp(38px, 6vw, 80px) 0;
  border-top: var(--line);
  background: var(--paper);
}

.page-about .ab-section--alt {
  background: var(--card);
}

.page-about .ab-section--dark {
  background: var(--ink);
  border-top: 0;
}

.page-about .ab-section--dark .jh-title {
  color: var(--paper);
}

.page-about .ab-section--dark .jh-lede {
  color: rgba(244, 239, 228, 0.78);
}

.page-about .ab-section--dark .jh-eyebrow {
  color: #E7C67F;
}

.page-about .ab-section--dark .jh-eyebrow__num {
  background: var(--gold);
  color: var(--ink);
  border-color: var(--gold);
}

.page-about .ab-section__head {
  max-width: 780px;
  margin-bottom: clamp(24px, 4vw, 44px);
}

.page-about .ab-section__head .jh-title {
  margin-top: 12px;
  letter-spacing: -0.015em;
}

.page-about .ab-section__head .jh-lede {
  margin-top: 16px;
}

/* ---------- 时间线 ---------- */
.page-about .ab-tl {
  list-style: none;
  margin: 0 0 clamp(30px, 5vw, 52px);
  padding: 0 0 0 26px;
  border-left: 2px solid var(--dust);
  display: grid;
  gap: clamp(22px, 3.4vw, 34px);
}

.page-about .ab-tl__item {
  position: relative;
}

.page-about .ab-tl__item::before {
  content: "";
  position: absolute;
  left: -33px;
  top: 7px;
  width: 14px;
  height: 14px;
  box-sizing: border-box;
  background: var(--gold);
  border: 2px solid var(--paper);
  box-shadow: 0 0 0 3px rgba(197, 138, 42, 0.18);
}

.page-about .ab-tl__ver {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--ink);
  background: var(--gold);
  padding: 3px 9px;
  margin-bottom: 9px;
}

.page-about .ab-tl__name {
  margin: 0 0 6px;
  font-size: clamp(17px, 2.1vw, 20px);
  font-weight: 800;
  color: var(--ink);
  letter-spacing: -0.01em;
}

.page-about .ab-tl__text {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--rock);
  max-width: 62ch;
}

/* ---------- 图片 ---------- */
.page-about .ab-figure {
  margin: clamp(26px, 4vw, 44px) 0 0;
}

.page-about .ab-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

.page-about .ab-figure .jh-figure__cap {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--rock);
  opacity: 0.85;
}

/* ---------- 旧版资料栏目 ---------- */
.page-about .ab-shelf {
  display: grid;
  gap: 14px;
  grid-template-columns: minmax(0, 1fr);
}

.page-about .ab-shelf__item {
  background: var(--paper);
  border: 1.5px solid var(--ink);
  box-shadow: var(--shadow-sm);
  padding: 20px 18px 22px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-about .ab-shelf__num {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--slate);
}

.page-about .ab-shelf__item h3 {
  margin: 0;
  font-size: 18px;
  font-weight: 800;
  color: var(--ink);
  letter-spacing: -0.01em;
}

.page-about .ab-shelf__item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.74;
  color: var(--rock);
}

.page-about .ab-shelf__note {
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 18px 20px;
  border-left: 4px solid var(--slate);
  background: rgba(79, 111, 120, 0.09);
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--rock);
}

/* ---------- 双版本对照 ---------- */
.page-about .ab-compare {
  display: grid;
  gap: 16px;
  grid-template-columns: minmax(0, 1fr);
  margin-top: clamp(6px, 1.5vw, 14px);
}

.page-about .ab-compare__col {
  background: var(--card);
  border: 1.5px solid var(--ink);
  box-shadow: var(--shadow);
  padding-bottom: 8px;
}

.page-about .ab-compare__head {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  padding: 15px 20px;
  color: #fff;
}

.page-about .ab-compare__col--classic .ab-compare__head {
  background: var(--slate);
}

.page-about .ab-compare__col--current .ab-compare__head {
  background: var(--brick);
}

.page-about .ab-compare__code {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  padding: 2px 7px;
  border: 1px solid rgba(255, 255, 255, 0.55);
}

.page-about .ab-compare__head strong {
  font-size: 16px;
  font-weight: 800;
  letter-spacing: 0.01em;
}

.page-about .ab-compare__list {
  margin: 0;
  padding: 4px 20px 8px;
}

.page-about .ab-compare__row {
  padding: 13px 0;
  border-bottom: 1px solid var(--dust);
}

.page-about .ab-compare__row:last-child {
  border-bottom: 0;
}

.page-about .ab-compare__row dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.07em;
  font-weight: 700;
  color: var(--rock);
  margin-bottom: 4px;
}

.page-about .ab-compare__row dd {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.72;
  color: var(--ink);
}

.page-about .ab-compare__hint {
  margin: clamp(20px, 3vw, 28px) 0 0;
  padding: 16px 18px;
  background: rgba(197, 138, 42, 0.1);
  border-left: 4px solid var(--gold);
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--rock);
}

.page-about .ab-compare__actions,
.page-about .ab-scale__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

/* ---------- 通用链接按钮 ---------- */
.page-about .ab-link-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 20px;
  font-size: 14.5px;
  font-weight: 700;
  text-decoration: none;
  color: var(--ink);
  background: var(--gold);
  border: 1.5px solid var(--gold);
  transition: background 0.2s var(--ease), color 0.2s var(--ease),
    border-color 0.2s var(--ease);
}

.page-about .ab-link-btn:hover {
  background: var(--gold-deep);
  border-color: var(--gold-deep);
  color: var(--paper);
}

.page-about .ab-link-btn--ghost {
  background: transparent;
  border-color: var(--ink);
  color: var(--ink);
}

.page-about .ab-link-btn--ghost:hover {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper);
}

.page-about .ab-link-btn--onDark {
  background: transparent;
  border-color: rgba(244, 239, 228, 0.5);
  color: var(--paper);
}

.page-about .ab-link-btn--onDark:hover {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--ink);
}

/* ---------- 流程 ---------- */
.page-about .ab-flow {
  display: grid;
  gap: 14px;
  grid-template-columns: minmax(0, 1fr);
}

.page-about .ab-flow__step {
  background: var(--paper);
  border: 1.5px solid var(--ink);
  box-shadow: var(--shadow-sm);
  padding: 20px 18px 22px;
}

.page-about .ab-flow__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 28px;
  font-weight: 700;
  line-height: 1;
  color: var(--gold-deep);
  margin-bottom: 12px;
}

.page-about .ab-flow__step h3 {
  margin: 0 0 8px;
  font-size: 17.5px;
  font-weight: 800;
  color: var(--ink);
}

.page-about .ab-flow__step p {
  margin: 0;
  font-size: 15px;
  line-height: 1.74;
  color: var(--rock);
}

.page-about .ab-audit {
  margin-top: clamp(20px, 3vw, 30px);
  display: grid;
  gap: 12px;
  padding: 20px;
  border: 1.5px solid var(--moss);
  background: rgba(95, 115, 88, 0.08);
}

.page-about .ab-audit__tag {
  justify-self: start;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--paper);
  background: var(--moss);
  padding: 3px 10px;
}

.page-about .ab-audit p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--rock);
}

/* ---------- 服务体量 ---------- */
.page-about .ab-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: rgba(244, 239, 228, 0.2);
  border: 1px solid rgba(244, 239, 228, 0.2);
}

.page-about .ab-stats__cell {
  background: var(--ink-deep);
  padding: 20px 16px 22px;
}

.page-about .ab-stats__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(26px, 4vw, 36px);
  font-weight: 700;
  line-height: 1.1;
  color: #E7C67F;
  letter-spacing: -0.01em;
}

.page-about .ab-stats__label {
  margin: 9px 0 0;
  font-size: 13.5px;
  line-height: 1.65;
  color: rgba(244, 239, 228, 0.78);
}

/* ---------- 协作方式 ---------- */
.page-about .ab-team {
  display: grid;
  gap: 14px;
  grid-template-columns: minmax(0, 1fr);
}

.page-about .ab-team__item {
  background: var(--card);
  border: 1.5px solid var(--ink);
  border-top: 5px solid var(--gold);
  padding: 18px 18px 22px;
}

.page-about .ab-team__item h3 {
  margin: 0 0 8px;
  font-size: 17.5px;
  font-weight: 800;
  color: var(--ink);
  letter-spacing: -0.01em;
}

.page-about .ab-team__item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.76;
  color: var(--rock);
}

.page-about .ab-team__hint {
  margin: clamp(20px, 3vw, 28px) 0 0;
  padding: 16px 18px;
  border-left: 4px solid var(--gold);
  background: rgba(197, 138, 42, 0.09);
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--rock);
}

/* ---------- 结尾行动区 ---------- */
.page-about .ab-cta {
  background: var(--ink);
  color: var(--paper);
  padding: clamp(38px, 6vw, 76px) 0;
  border-top: 3px solid var(--gold);
}

.page-about .ab-cta__inner {
  display: grid;
  gap: 16px;
}

.page-about .ab-cta__title {
  margin: 0;
  font-size: clamp(24px, 4vw, 38px);
  font-weight: 800;
  letter-spacing: -0.015em;
  color: var(--paper);
}

.page-about .ab-cta__text {
  margin: 0;
  max-width: 52ch;
  font-size: 16px;
  line-height: 1.78;
  color: rgba(244, 239, 228, 0.78);
}

.page-about .ab-cta__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 6px;
}

.page-about .ab-cta__links a {
  display: inline-flex;
  align-items: center;
  padding: 11px 20px;
  font-size: 14.5px;
  font-weight: 700;
  text-decoration: none;
  color: var(--paper);
  border: 1.5px solid rgba(244, 239, 228, 0.45);
  transition: background 0.2s var(--ease), color 0.2s var(--ease),
    border-color 0.2s var(--ease);
}

.page-about .ab-cta__links a:first-child {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--ink);
}

.page-about .ab-cta__links a:hover {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--ink);
}

/* ---------- 断点 ---------- */
@media (min-width: 620px) {
  .page-about .ab-shelf {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 840px) {
  .page-about .ab-compare {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }

  .page-about .ab-flow {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .ab-team {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .ab-audit {
    grid-template-columns: auto minmax(0, 1fr);
    align-items: start;
    gap: 18px;
  }
}

@media (min-width: 940px) {
  .page-about .ab-hero__grid {
    grid-template-columns: minmax(0, 1fr) 292px;
    gap: 56px;
    align-items: end;
  }

  .page-about .ab-stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .ab-stats__cell {
    padding: 26px 22px 28px;
  }
}

@media (min-width: 1020px) {
  .page-about .ab-shelf {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .ab-link-btn,
  .page-about .ab-cta__links a {
    transition: none;
  }
}
<<<END>>>